SSTC based on LabCoatz version, with adjustable Schmitt trigger oscillator. With a properly adjusted device, the length of the scattered spark exceeds 20 cm.

In this tutorial, I am going to show you guys how to design this "Transformers PCB Badge" and how to solder the components to it.

The Pinecil LED Ring adds three LED lights to the Pinecil soldering iron to improve soldering in dark environments. This addition to the Pinecil soldering iron fits just above the soldering tip on the plastic area by friction so no glueing is required. It is easy to assemble and add to the iron using another soldering iron to connect the internals.

Foldable Lamp Box - Night Light - reacts to sound and has adjustable brightness, USB port for charging, runs 24h on Battery - ATtiny85 processor - 25x WS2812 leds

Despite the many options and customization possibilities, this device is extremely simple to build, and contains a minimal number of components.

In this tutorial I am going to create a chaser circuit that can drive 20 or more LEDs using 555 timer IC and CD4017 decade counter.

LedBox V3 is an ultimate, sound-reactive LED controller, compatible with 5-12V addressable LED strips (WS281x, SK6812, etc.), supporting 3-(data) and 4-(data/clock) wire signal protocols. Whether you prefer a plug-and-play solution, or you are a maker that loves tinkering with hardware, it offers the best of both worlds.

Keychain with 4 ws2812b-2020 LEDs, MCU ch32v003 and USB

We have a circuit with LEDs. Who doesn't like LEDs?

This small 20W RGB video light can be fully 3D printed and is very simple to operate. You can switch on the light by pressing the button on the side once. By rotating the encoder, we can cycle through the hue value. After pushing the encoder, we can switch to the brightness control mode. We can adjust the brightness of the LED by rotating the encoder. If we push the encoder button again, we can switch back to the hue control mode. It's a one-knob operation.

This is a light bulb indicator kit that blinks with music.